mirror of
https://github.com/reactos/wine.git
synced 2024-11-29 14:40:56 +00:00
362 lines
9.8 KiB
C
362 lines
9.8 KiB
C
/*
|
|
* Copyright 2004 Hans Leidekker
|
|
* Copyright 2006 Mike McCormack
|
|
*
|
|
* Based on DES.c from libcifs
|
|
*
|
|
* Copyright (C) 2003, 2004 by Christopher R. Hertel
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "windef.h"
|
|
#include "crypt.h"
|
|
|
|
static const unsigned char InitialPermuteMap[64] =
|
|
{
|
|
57, 49, 41, 33, 25, 17, 9, 1,
|
|
59, 51, 43, 35, 27, 19, 11, 3,
|
|
61, 53, 45, 37, 29, 21, 13, 5,
|
|
63, 55, 47, 39, 31, 23, 15, 7,
|
|
56, 48, 40, 32, 24, 16, 8, 0,
|
|
58, 50, 42, 34, 26, 18, 10, 2,
|
|
60, 52, 44, 36, 28, 20, 12, 4,
|
|
62, 54, 46, 38, 30, 22, 14, 6
|
|
};
|
|
|
|
static const unsigned char KeyPermuteMap[56] =
|
|
{
|
|
49, 42, 35, 28, 21, 14, 7, 0,
|
|
50, 43, 36, 29, 22, 15, 8, 1,
|
|
51, 44, 37, 30, 23, 16, 9, 2,
|
|
52, 45, 38, 31, 55, 48, 41, 34,
|
|
27, 20, 13, 6, 54, 47, 40, 33,
|
|
26, 19, 12, 5, 53, 46, 39, 32,
|
|
25, 18, 11, 4, 24, 17, 10, 3,
|
|
};
|
|
|
|
static const unsigned char KeyRotation[16] =
|
|
{ 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 };
|
|
|
|
static const unsigned char KeyCompression[48] =
|
|
{
|
|
13, 16, 10, 23, 0, 4, 2, 27,
|
|
14, 5, 20, 9, 22, 18, 11, 3,
|
|
25, 7, 15, 6, 26, 19, 12, 1,
|
|
40, 51, 30, 36, 46, 54, 29, 39,
|
|
50, 44, 32, 47, 43, 48, 38, 55,
|
|
33, 52, 45, 41, 49, 35, 28, 31
|
|
};
|
|
|
|
static const unsigned char DataExpansion[48] =
|
|
{
|
|
31, 0, 1, 2, 3, 4, 3, 4,
|
|
5, 6, 7, 8, 7, 8, 9, 10,
|
|
11, 12, 11, 12, 13, 14, 15, 16,
|
|
15, 16, 17, 18, 19, 20, 19, 20,
|
|
21, 22, 23, 24, 23, 24, 25, 26,
|
|
27, 28, 27, 28, 29, 30, 31, 0
|
|
};
|
|
|
|
static const unsigned char SBox[8][64] =
|
|
{
|
|
{ /* S0 */
|
|
14, 0, 4, 15, 13, 7, 1, 4, 2, 14, 15, 2, 11, 13, 8, 1,
|
|
3, 10, 10, 6, 6, 12, 12, 11, 5, 9, 9, 5, 0, 3, 7, 8,
|
|
4, 15, 1, 12, 14, 8, 8, 2, 13, 4, 6, 9, 2, 1, 11, 7,
|
|
15, 5, 12, 11, 9, 3, 7, 14, 3, 10, 10, 0, 5, 6, 0, 13
|
|
},
|
|
{ /* S1 */
|
|
15, 3, 1, 13, 8, 4, 14, 7, 6, 15, 11, 2, 3, 8, 4, 14,
|
|
9, 12, 7, 0, 2, 1, 13, 10, 12, 6, 0, 9, 5, 11, 10, 5,
|
|
0, 13, 14, 8, 7, 10, 11, 1, 10, 3, 4, 15, 13, 4, 1, 2,
|
|
5, 11, 8, 6, 12, 7, 6, 12, 9, 0, 3, 5, 2, 14, 15, 9
|
|
},
|
|
{ /* S2 */
|
|
10, 13, 0, 7, 9, 0, 14, 9, 6, 3, 3, 4, 15, 6, 5, 10,
|
|
1, 2, 13, 8, 12, 5, 7, 14, 11, 12, 4, 11, 2, 15, 8, 1,
|
|
13, 1, 6, 10, 4, 13, 9, 0, 8, 6, 15, 9, 3, 8, 0, 7,
|
|
11, 4, 1, 15, 2, 14, 12, 3, 5, 11, 10, 5, 14, 2, 7, 12
|
|
},
|
|
{ /* S3 */
|
|
7, 13, 13, 8, 14, 11, 3, 5, 0, 6, 6, 15, 9, 0, 10, 3,
|
|
1, 4, 2, 7, 8, 2, 5, 12, 11, 1, 12, 10, 4, 14, 15, 9,
|
|
10, 3, 6, 15, 9, 0, 0, 6, 12, 10, 11, 1, 7, 13, 13, 8,
|
|
15, 9, 1, 4, 3, 5, 14, 11, 5, 12, 2, 7, 8, 2, 4, 14
|
|
},
|
|
{ /* S4 */
|
|
2, 14, 12, 11, 4, 2, 1, 12, 7, 4, 10, 7, 11, 13, 6, 1,
|
|
8, 5, 5, 0, 3, 15, 15, 10, 13, 3, 0, 9, 14, 8, 9, 6,
|
|
4, 11, 2, 8, 1, 12, 11, 7, 10, 1, 13, 14, 7, 2, 8, 13,
|
|
15, 6, 9, 15, 12, 0, 5, 9, 6, 10, 3, 4, 0, 5, 14, 3
|
|
},
|
|
{ /* S5 */
|
|
12, 10, 1, 15, 10, 4, 15, 2, 9, 7, 2, 12, 6, 9, 8, 5,
|
|
0, 6, 13, 1, 3, 13, 4, 14, 14, 0, 7, 11, 5, 3, 11, 8,
|
|
9, 4, 14, 3, 15, 2, 5, 12, 2, 9, 8, 5, 12, 15, 3, 10,
|
|
7, 11, 0, 14, 4, 1, 10, 7, 1, 6, 13, 0, 11, 8, 6, 13
|
|
},
|
|
{ /* S6 */
|
|
4, 13, 11, 0, 2, 11, 14, 7, 15, 4, 0, 9, 8, 1, 13, 10,
|
|
3, 14, 12, 3, 9, 5, 7, 12, 5, 2, 10, 15, 6, 8, 1, 6,
|
|
1, 6, 4, 11, 11, 13, 13, 8, 12, 1, 3, 4, 7, 10, 14, 7,
|
|
10, 9, 15, 5, 6, 0, 8, 15, 0, 14, 5, 2, 9, 3, 2, 12
|
|
},
|
|
{ /* S7 */
|
|
13, 1, 2, 15, 8, 13, 4, 8, 6, 10, 15, 3, 11, 7, 1, 4,
|
|
10, 12, 9, 5, 3, 6, 14, 11, 5, 0, 0, 14, 12, 9, 7, 2,
|
|
7, 2, 11, 1, 4, 14, 1, 7, 9, 4, 12, 10, 14, 8, 2, 13,
|
|
0, 15, 6, 12, 10, 9, 13, 0, 15, 3, 3, 5, 5, 6, 8, 11
|
|
}
|
|
};
|
|
|
|
static const unsigned char PBox[32] =
|
|
{
|
|
15, 6, 19, 20, 28, 11, 27, 16,
|
|
0, 14, 22, 25, 4, 17, 30, 9,
|
|
1, 7, 23, 13, 31, 26, 2, 8,
|
|
18, 12, 29, 5, 21, 10, 3, 24
|
|
};
|
|
|
|
static const unsigned char FinalPermuteMap[64] =
|
|
{
|
|
7, 39, 15, 47, 23, 55, 31, 63,
|
|
6, 38, 14, 46, 22, 54, 30, 62,
|
|
5, 37, 13, 45, 21, 53, 29, 61,
|
|
4, 36, 12, 44, 20, 52, 28, 60,
|
|
3, 35, 11, 43, 19, 51, 27, 59,
|
|
2, 34, 10, 42, 18, 50, 26, 58,
|
|
1, 33, 9, 41, 17, 49, 25, 57,
|
|
0, 32, 8, 40, 16, 48, 24, 56
|
|
};
|
|
|
|
#define CLRBIT( STR, IDX ) ( (STR)[(IDX)/8] &= ~(0x01 << (7 - ((IDX)%8))) )
|
|
#define SETBIT( STR, IDX ) ( (STR)[(IDX)/8] |= (0x01 << (7 - ((IDX)%8))) )
|
|
#define GETBIT( STR, IDX ) (( ((STR)[(IDX)/8]) >> (7 - ((IDX)%8)) ) & 0x01)
|
|
|
|
static void Permute( unsigned char *dst, const unsigned char *src, const unsigned char *map, const int mapsize )
|
|
{
|
|
int bitcount, i;
|
|
|
|
for (i = 0; i < mapsize; i++)
|
|
dst[i] = 0;
|
|
|
|
bitcount = mapsize * 8;
|
|
|
|
for (i = 0; i < bitcount; i++)
|
|
{
|
|
if (GETBIT( src, map[i] ))
|
|
SETBIT( dst, i );
|
|
}
|
|
}
|
|
|
|
static void KeyShiftLeft( unsigned char *key, const int numbits )
|
|
{
|
|
int i;
|
|
unsigned char keep = key[0];
|
|
|
|
for (i = 0; i < numbits; i++)
|
|
{
|
|
int j;
|
|
|
|
for (j = 0; j < 7; j++)
|
|
{
|
|
if (j && (key[j] & 0x80))
|
|
key[j-1] |= 0x01;
|
|
key[j] <<= 1;
|
|
}
|
|
|
|
if (GETBIT( key, 27 ))
|
|
{
|
|
CLRBIT( key, 27 );
|
|
SETBIT( key, 55 );
|
|
}
|
|
|
|
if (keep & 0x80)
|
|
SETBIT( key, 27 );
|
|
|
|
keep <<= 1;
|
|
}
|
|
}
|
|
|
|
static void KeyShiftRight( unsigned char *key, const int numbits )
|
|
{
|
|
int i;
|
|
unsigned char keep = key[6];
|
|
|
|
for (i = 0; i < numbits; i++)
|
|
{
|
|
int j;
|
|
|
|
for (j = 7; j >= 0; j--)
|
|
{
|
|
if (j!=7 && (key[j] & 0x01))
|
|
key[j+1] |= 0x80;
|
|
key[j] >>= 1;
|
|
}
|
|
|
|
if (GETBIT( key, 28 ))
|
|
{
|
|
CLRBIT( key, 28 );
|
|
SETBIT( key, 0 );
|
|
}
|
|
|
|
if (keep & 0x01)
|
|
SETBIT( key, 28 );
|
|
|
|
keep >>= 1;
|
|
}
|
|
}
|
|
|
|
static void sbox( unsigned char *dst, const unsigned char *src )
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 4; i++)
|
|
dst[i] = 0;
|
|
|
|
for (i = 0; i < 8; i++)
|
|
{
|
|
int j, Snum, bitnum;
|
|
|
|
for (Snum = j = 0, bitnum = (i * 6); j < 6; j++, bitnum++)
|
|
{
|
|
Snum <<= 1;
|
|
Snum |= GETBIT( src, bitnum );
|
|
}
|
|
|
|
if (0 == (i%2))
|
|
dst[i/2] |= ((SBox[i][Snum]) << 4);
|
|
else
|
|
dst[i/2] |= SBox[i][Snum];
|
|
}
|
|
}
|
|
|
|
static void xor( unsigned char *dst, const unsigned char *a, const unsigned char *b, const int count )
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < count; i++)
|
|
dst[i] = a[i] ^ b[i];
|
|
}
|
|
|
|
unsigned char *CRYPT_DESkey8to7( unsigned char *dst, const unsigned char *key )
|
|
{
|
|
int i;
|
|
unsigned char tmp[7];
|
|
static const unsigned char map8to7[56] =
|
|
{
|
|
0, 1, 2, 3, 4, 5, 6,
|
|
8, 9, 10, 11, 12, 13, 14,
|
|
16, 17, 18, 19, 20, 21, 22,
|
|
24, 25, 26, 27, 28, 29, 30,
|
|
32, 33, 34, 35, 36, 37, 38,
|
|
40, 41, 42, 43, 44, 45, 46,
|
|
48, 49, 50, 51, 52, 53, 54,
|
|
56, 57, 58, 59, 60, 61, 62
|
|
};
|
|
|
|
if ((dst == NULL) || (key == NULL))
|
|
return NULL;
|
|
|
|
Permute( tmp, key, map8to7, 7 );
|
|
|
|
for (i = 0; i < 7; i++)
|
|
dst[i] = tmp[i];
|
|
|
|
return dst;
|
|
}
|
|
|
|
unsigned char *CRYPT_DEShash( unsigned char *dst, const unsigned char *key, const unsigned char *src )
|
|
{
|
|
int i;
|
|
unsigned char K[7];
|
|
unsigned char D[8];
|
|
|
|
Permute( K, key, KeyPermuteMap, 7 );
|
|
Permute( D, src, InitialPermuteMap, 8 );
|
|
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
int j;
|
|
unsigned char *L = D;
|
|
unsigned char *R = &(D[4]);
|
|
unsigned char Rexp[6];
|
|
unsigned char Rn[4];
|
|
unsigned char SubK[6];
|
|
|
|
KeyShiftLeft( K, KeyRotation[i] );
|
|
Permute( SubK, K, KeyCompression, 6 );
|
|
|
|
Permute( Rexp, R, DataExpansion, 6 );
|
|
xor( Rexp, Rexp, SubK, 6 );
|
|
|
|
sbox( Rn, Rexp );
|
|
Permute( Rexp, Rn, PBox, 4 );
|
|
xor( Rn, L, Rexp, 4 );
|
|
|
|
for (j = 0; j < 4; j++)
|
|
{
|
|
L[j] = R[j];
|
|
R[j] = Rn[j];
|
|
}
|
|
}
|
|
|
|
Permute( dst, D, FinalPermuteMap, 8 );
|
|
|
|
return dst;
|
|
}
|
|
|
|
unsigned char *CRYPT_DESunhash( unsigned char *dst, const unsigned char *key, const unsigned char *src )
|
|
{
|
|
int i;
|
|
unsigned char K[7];
|
|
unsigned char D[8];
|
|
|
|
Permute( K, key, KeyPermuteMap, 7 );
|
|
Permute( D, src, InitialPermuteMap, 8 );
|
|
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
int j;
|
|
unsigned char *L = D;
|
|
unsigned char *R = &(D[4]);
|
|
unsigned char Rexp[6];
|
|
unsigned char Rn[4];
|
|
unsigned char SubK[6];
|
|
|
|
Permute( SubK, K, KeyCompression, 6 );
|
|
|
|
Permute( Rexp, R, DataExpansion, 6 );
|
|
xor( Rexp, Rexp, SubK, 6 );
|
|
|
|
sbox( Rn, Rexp );
|
|
Permute( Rexp, Rn, PBox, 4 );
|
|
xor( Rn, L, Rexp, 4 );
|
|
|
|
for (j = 0; j < 4; j++)
|
|
{
|
|
L[j] = R[j];
|
|
R[j] = Rn[j];
|
|
}
|
|
|
|
KeyShiftRight( K, KeyRotation[15 - i] );
|
|
}
|
|
|
|
Permute( dst, D, FinalPermuteMap, 8 );
|
|
|
|
return dst;
|
|
}
|